Cement block and brick machine.



W. I. KENNEDY.

CEMENT BLOGK AND BRIGK MACHINE. APPLICATION FILED HA3. 9, 1910.

1,030,094,- Patented June 18, 1912.

3 SHEETS-SHEET 1.

ATTORNEYS W. I. KENNEDY.

CEMENT BLOOK AND BRICK MACHINE.

APPLICATION IILED MAR. 9 1910.

Patented June18, 1912.

3 SHEETS-EH33! 2.

WITNESSES:

ATTORNEYS COLUMBIA PLANDURAPH CO..WASHINH'NN,D.

W. I. KENNEDY.

GEMENT BLOCK AND- BRICK MAGHINE.

' APPLIOATION 3mm MAB. 9, 1910;

' 1,030,094, Patented June 18, 1912.

3 BHEBTB-8HEET 3.

W/TNESSES: INVENTOR ihzzmlfivmazr Q. a. ha By y,

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WILLIAM I. KENNEDY, OF MINNEWAUKAN, NORTH DAKOTA.

CEMENT BLOCK AND BRICK MACHINE.

Specification of Letters Patent.

Patented June 18, 1912.

App1icatio11 filed March 9, 1910. Serial No. 548,213.

To all whom, it may concern: 1

Be it known that I, l VILLIAM I. KENNEDY, a citizen of the United States, and a resident of Minnewaukan, in the county of Benson, State of North Dakota, have invented certain new and useful Improvements in Ge ment Block and Brick Machines, of which the following'is a specification.

My invention is an improvement in cement block and brick machines, and consists in certain novel constructions and combinations of parts hereinafter described and claimed.

The object of the invention is to provide a machine of the character specified adapted for making blocks or'bricks wherein a plurality of interchangeable pallets is provided, and a plurality of interchangeable core supports, the pallets having openings through which the cores pass when the support is in place, and a sectional mold resting on the pallet.

Referring to the drawings forming a part hereof: Figure l'is a perspective view of the machine; Fig. 2 is a transverse section; Fig. 3, a partial vertical section of the block mold; Fig. 4 is a partial horizontal section of the same; Fig. 5 is a transverse section of the brick mold; and Fig. 6 is a perspective view of a portion of the same.

The embodiment of the invention shown in the drawings consists of a supporting frame composed of uprights 1 which are connected in pairs by upper and lower cross bars 2 and 3, and the cross bars 2 are connected near their centers by a pair of spaced bars a, which are preferably channel-shaped, as shown in Fig. 2, the uprights and cross bars being in the shape of angle bars. A pair of angle bars 5 is arrangedvertically on each of the end frames formed by the uprights and cross bars, the upper ends of the bars being connected with the cross bar 2 between the bars 4, and the lower ends to the cross bar. A bearing 6 is arranged on each of the cross bars 3 between the members of each pair of vertical bars, and a beam 7 is journaled in the bearings, the beam having rounded portions 8 for engaging the bearings. A lever 9 is provided with a fork whose arms 10 are arranged on each side of the beam and pivoted thereto by a pin 11, and the upper end of the lever is formed into a grip 12. The lever is also provided with a flange 13, which is adapted to .engage the teeth of a ratchet bar 14 secured to the frame, for a purpose to be later described. Rods 15 are journaled in openings in opposite uprights, and a pair of spaced levers 16, 16 is secured to each rod, the levers 16 having openings intermediate their ends through which the rods pass, and the levers 16 having openings at their ends for the same purpose. A mold side wall 17 is connected with the upper ends of the levers 16 andanother side wall 17 with the levers 16 by means of lugs 18 near the ends of the board, each lug being secured between the arms of a fork 19 on the upper end of a lever and pivoted thereto by a pin or bolt 20. One of the side mold walls 17 a has connected thereto the end walls 21, the end walls being hinged to the ends of the side wall by hinge 22, and a spring 23 is coiled around the pivot 24- of the hinge, the ends 25, 26 of the spring engaging the end wall and side wall, respectively, to normally hold said end walls at right angles to the side walls or in closed position. It will be evident that when the levers 16, 16 are swung into the position shown in Fig. 2 the side mold walls will be moved toward each other, and the arrangement and relative proportions of the parts are such that when in this posit-ion the free edges of the end walls will contact with the other side wall, forming a complete rectangular inclosure.

The bottom 27 of the mold rests upon the bars 4:, and the bars are so arranged that the sides of the mold are flush with the outer faces of the said bars. The levers 16 are operated by means of the lever 9 before described, the beam 7 being provided with bracket arms 28 to which are pivoted the arms of forks 29 on one end of links 30 and 31. The opposite ends of the links 30 are received between the arms of forks 32 on the lower ends of the levers l6, and the opposite ends of the links 31 are provided with forks 33, whose arms are pivoted to the levers 16 above the rod 15.

hen the lever 9 is swung to left of Fig. 1, the upper ends of both pairs of levers 16 and 16 will be swung toward each other, thus bringing the mold walls into closed position on the bottom. The mold side 17 is provided at each end with a curved plate 34:, the plate having one end reduced and threaded and passed through the mold side and engaged by a nut 35 to retain it in place. The plates 34 fit outside of the end walls and prevent them swinging outward when plate 38 is provided near its ends with lateral flanges 40, to which are pivoted the arms 41 of a forked lever 42, and the lever is pivoted on one of the rods 15 intermediate its ends. The outer end of the lever is provided with a grip 43, and a catch 44 in the form of a hook for engaging the lever is secured at one end to a bar 45 connecting the uprights at one side.

The core supporting block may be swung into and out of position by means of the lever and may be held in position by engaging the hook with the lever, as shown in Fig. l. The said block is provided at each end with spaced outwardly projecting lugs 46 which move along the outer edges of the upright bars 5 to guide the said block, and each of the bars 5 is provided with a lateral lug 47 upon which the adjacent lug 46 rests when the block is in lowered position. Other blocks 47*" are provided on the inner face of the bars 5 for engagement by the ends of a depending arch bracket 48 at each end of the core supporting block. The bars 5 are supported by the cross bars 2 and 3, and the uprights and cross bars are connected by rivets or bolts 49. The bottom 27 of the mold is the pallet upon which the brick rests and by means of which it may be removed from the machine, and since the mold walls rest on the upper face of the bottom the said bottom may vary in width and length without affecting the operation of the machine.

In operation, a pallet being in place, the

4 core supporting block is elevated until the cores extend through the openings in the pallet by means of the lever 42, and is locked in thisposition by means of the catch 44. The lever 9 is then rocked to the left of Fig. l to close the mold walls and is locked in adjusted position by the engagement of the flange with the ratchet bar. The material is now inserted in the mold: and tamped and permitted to stand a short time until the material sets sufficiently, so that the block will stand alone. The cores are withdrawn by reversing the movement of the lever 42, after which the mold sides are swung outwardly by the lever 9. The pallet with the block thereon is then removed and the operation repeated. The mold holds the block steady during the withdrawal of the core,

and it is evident that the said core may be of any desired shape or dimension, as may also the mold.

The entire machine is preferably constructed of iron and steel and is very strong and of comparative light weight. It is also easily operated and not liable to get out of order. The hinging of the ends prevents any tendency of the ends to pull on the ends of the formed block.

Only two movements are necessary to open or close the mold or form, and the four walls are completely removed out of the way, so that free access may be had to the pallet to remove the block.

In Figs. 5 and 6 a brick attachment is shown for making a plurality of small blocks or bricks. This attachment consists of a bottom 50 provided with a plurality of transverse partitions 51 and the pallet (not shown) may be provided with transverse openings through which the partitions eX tend. The bottom 50 takes the place of the core supporting block which is removed, and the said bottom is provided with the guiding lugs 48 before described, and acts in the same manner as the core supporting block. In usingthe attachment the block 38 is removed and the bottom or plate 50 ar ranged in its place, a pallet 52 being used instead of a pallet 27, and the operation is precisely the same as described for making blocks.

The improvement consists broadly of a pallet support and interchangeable pallets adapted to be placed thereon, together with a sectional mold whose bottom is formed by the pallet, and a series of interchangeable core supports adapted: to rest against the under face of the pallet,.the said pallet having openings through which the cores extend. The partitions are only another form of core.

I claim:

1. A machine of the class described,.comprising a frame, a rod at each side of the frame, a pair of levers on each rod, the levers on one rod extending below the same, a shaft between and below the rods, arms on the shaft, links connecting the arms with the extended ends of the levers onone rodand with the levers on the other rod above the said rod, a lever for oscillating the shaft, a mold side connected with the upper ends of each pair of arms, end walls hinged to and means engaging the lever of the shaft for locking the mold walls in closed position.

2. A machine of the class described, comprising a frame, a mold comprising a pallet support provided with openings for the passage of core blocks, a plurality of sides, and ends hinged to one of the sides, springs engaging the ends for normally holding them in closed position at right-angles to the sides, guide plates connected with the opposite side for engaging the ends to guide them into proper engagement with the said side, said plates being curved outwardly toward their free ends, pivotally mounted levers at each side of the frame for supporting the said sides, means for simultaneously moving the said sides toward and from each other and into position on the pallet support, a plurality of core blocks, means for simultaneously moving the said blocks through the openings of the support and into the mold, and means for locking the sides, ends and core blocks in position.

3. A machine of the character specified, comprising a bottom plate having openings for, core blocks, oppositely arranged sides, ends hinged to one of the sides, springs engaging the ends for normally holding them in closed position at right-angles to the sides, guide plates connected with the opposite side for engaging the ends to guide them into proper engagement with the said side, said plates being curved outwardly toward their free ends, means for simultaneously moving the sides into and out of position on the bottom plate, a plurality of core blocks, and means for moving the said core blocks through the openings into and out of the mold.

4s. A machine of the character specified, comprising a bottom plate, a plurality of sides cooperating with the plate, ends hinged to one of the said sides, springs engaging the ends for normally holding them in closed position at right-angles to the sides, guide plates connected with the opposite side for engaging the ends to guide them into proper engagement with the said side, said plates being curved outwardly toward their free ends, means for simultaneously moving the sides into position on the bottom plate, and means for locking them in position.

WVILLIAM I. KENNEDY.

WVitnesses:

Gno. DUNCAN, A. O. SKARsTnR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

